Special adhesive for underwater construction and preparation method thereof

An underwater construction and adhesive technology, applied in adhesives, adhesive additives, epoxy resin glue, etc., can solve problems such as poor water resistance, poor initial adhesion, and easy cracking

Inactive Publication Date: 2014-02-05
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxy resin itself is a brittle material. Although it has been flexibly modified, the effect is not ideal. The concentrated performance is brittle, easy to crack, poor initial adhesion, and poor water resistance, so its application is greatly limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0042] 1) Preparation of component A:

[0043] The parts by weight are respectively 30 parts by weight, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts of modified epoxy resin elastomer HyPox RA840, 8 parts of xylene formaldehyde resin, 8 parts of nonylphenol, Add 12 parts of polypropylene glycol diglycidyl ether and 0.2 part of surfactant Texaphor P63 into the double planetary power mixing mixer, and mechanically stir for 0.5 hours under the condition that the rotation speed is 500 rpm and the revolution speed is 15 rpm; Then add 18 parts of quartz powder, under the conditions of rotation speed of 800 rpm and revolution speed of 20 rpm, mechanically stir for 2.5 hours, vacuumize to -0.08Mpa until the foam disappears, and obtain component A, pack and store for use ;

[0044]2) Preparation of component B:

[0045] The preparation of the B component is as follows: 0 parts by weight of ketimine, 21 parts of phenalkamine, 33 parts of H-25 modified polyamide, 3 parts o...

Embodiment 8-13

[0048] 1) Preparation of component A:

[0049] The parts by weight are respectively 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts of liquid petroleum resin, 24 parts of modified epoxy resin elastomer HyPox DA323, 20 parts of NPER-133L, benzene Add 6 parts of methanol, 11 parts of 1,4-butanediol diglycidyl ether, and 0.3 parts of surfactant Texaphor P64 into the double planetary power mixer, and the rotation speed is 400 rpm, and the revolution speed is 10 rpm Under the condition of 0.5 hours of mechanical stirring; add 4 parts of corundum powder, 10 parts of aluminum hydroxide, under the conditions of rotation speed of 600 rpm and revolution speed of 15 rpm, mechanically stir for 2.5 hours, and vacuumize to - 0.08Mpa until the foam disappears to obtain component A, which is packaged and placed for use;

[0050] 2) Preparation of component B:

[0051] The preparation of the B component is as follows: 20 parts by weight of ketimine, 0 part of phenalkamine, 43 part...

Embodiment 14-18

[0054] 1) Preparation of component A:

[0055] 44 parts by weight of modified epoxy resin elastomer NPER-133L, 15 parts by HyPox DA323, 2 parts by weight of alkylphenol-formaldehyde resin, and 2 parts by weight of benzyl alcohol are respectively 2 parts, 4 parts, 6 parts, 8 parts . Stir for 0.5 hours; then add 10 parts of aluminum hydroxide powder and 5 parts of quartz powder. Under the conditions of rotation speed of 900 rpm and revolution speed of 25 rpm, mechanically stir for 2.5 hours, vacuumize to -0.08Mpa to foam Disappeared, component A was obtained, packaged and placed for use;

[0056] 2) Preparation of component B:

[0057] The preparation of the B component is as follows: 50 parts by weight of ketimine, 5 parts of phenalkamine, 65 parts of Ancamide 2717 modified polyamide, 5 parts of 3-dimethylaminopropylamine, 15 parts of liquid petroleum resin, placed in In a double planetary power mixing kettle, stir at 1000 rpm for 60 minutes, then stir at a low speed of 300...

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Abstract

The invention discloses a special adhesive for underwater construction, and the special adhesive comprises an A component and a B component at a weight ratio of 100:(20-100):25, wherein the A component is prepared from the following raw materials in parts by weight: 30-60 parts of modified epoxy resin, 5-30 parts of tackifier, 2-10 parts of accelerant, 5-15 parts of reactive diluent, 0.1-0.3 parts of surfactant, and 10-35 parts of filler powder; the B component is prepared from the following raw materials in parts by weight: 0-60 parts of ketimine, 0-60 parts of phenalkamine, 30-65 parts of modified polyamide, 1-6 parts of curing accelerator, and 2-15 parts of moisture repellent. The special adhesive for underwater construction has the advantages of being good in bonding strength in water, good in toughness, water-resistant, capable of resisting chemical attack, strong in initial viscous force and convenient to construct, and great improvement is brought for the underwater construction field.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a special adhesive for underwater construction and a preparation method thereof. Sanitary drinking water tanks, ship repairing, shipbuilding and many other fields meet the requirements of underwater construction. Background technique [0002] Adhesives have been widely used in various fields of national economic construction, and the scope of use is getting wider and wider, and the application conditions are getting wider and wider. Usually, in order to ensure the success of bonding, the surface of the adhered object is required to be clean, dry, and pollution-free. However, in water conservancy projects and environmental governance projects, there is often a large amount of water in the construction environment, and the general requirements for underwater cementing adhesives It can be effectively bonded and cured underwater. In addition, the repair of underground concrete fac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/06C09J11/04
Inventor 姜贵琳王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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